"It was nice to see him doing well," Southerland said, comparing him to the last time he had seen him when he "didn't look good – very frail, but in this meeting he looked great."

Cheney addressed the meeting for just about 10 minutes, and in his speech he also compared the North Korean leader to Saddam Hussein by saying that "you never know what they're thinking." He told leaders to not "eliminate any possibility" and be on alert for any scenario.

"Here's a young guy we don't know very much about – have very little intel on him, so we just need to make sure that we don't assume why he's doing what he's doing because he could be doing what he's doing for any number of reasons," Cheney reportedly said.

Here is a video interview with Dick Cheney speaking this week about the passing of former British Prime Minister Margaret Thatcher: